Inside of Bird Cage Postcards Inside of Bird Cage No. 1844 Postcard. Caption on front: Inside of Bird Cage Showing Fountain, Franklin Park, Boston, Mass. Postally unused. On verso: Pub. by Mason Bros. & Co. Facebook Twitter Print Friendly Skills Bird cage, Dorchester, Franklin Park Posted on December 5, 2022 ← Overlook, Franklin Park Sheep Feeding in Franklin Park →